Building a deck over a flat roof is very similar to building a deck over a concrete patio.
Floating deck over flat roof.
Floating or pedestal roof deck assemblies can be an ideal low maintenance deck surface on high traffic areas when properly installed.
I ll be reviewing the bison products pedestal and deck tile system on this episode of the build show.
A reliable roofing approved waterproof membrane may be the most essential component to extend the lifetime performance for flat roof deck assemblies designed as floating or pedestal systems.
I am also planning to make a deck on my flat roof but i have some questions.
However i would highly recommend that you consider a that the epdm is lying flat on the roof subfloor without any sharp objects that can puncture the edpm once sleepers are laid over top and placed under load.
There are a few things that make pvc decking different in regards to roof decks.
So i will not be able to put the sleepers parallel to the slope.
Whenever i install decking over a roof i make sure the framing is structurally sound and properly pitched to drain water.
That means there are 4 slopes leading the rain or melted snow water to the drain.
Make sure that someone will be home when the material is delivered and you have it set directly on the roof in a convenient work area.
The most common approach is to use a heavy gauge epdm membrane typically 60 mil as the roofing membrane usually placed over rigid insulation.
The sleepers aren t fastened in place and the floor floats.
The drainage system flashing details and waterproofing membrane that go over the structural deck are the key to success.
If you order the lumber from a major hardware store and let them know that you are building a deck on a flat roof the material can be delivered on a truck with a lift.
They are merely placed on top of another structure.
You can use 2x material laid flat or 4x material also as sleepers.
Some key details for a leakproof rooftop deck are.
First you must make sure the roof is strong enough to support 55 lbs per square foot.
Hi thanks for the interesting blog.
You can do a floating deck and is really your only option.
The thing is that the roof draining is through a hole in the center of the roof.
But you re much better off taking the roof down and starting over with a high quality vinyl decking material.
How vinyl waterproof decking benefits roof decks.